Accumulation Dynamics and Acute Toxicity of Silver Nanoparticles toDaphnia magnaandLumbriculus variegatus: Implications for Metal Modeling Approaches

2015 ◽  
Vol 49 (7) ◽  
pp. 4389-4397 ◽  
Author(s):  
Farhan R. Khan ◽  
Kai B. Paul ◽  
Agnieszka D. Dybowska ◽  
Eugenia Valsami-Jones ◽  
Jamie R. Lead ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Acute Toxicity ◽  
Modeling Approaches

scholarly journals Size-dependent acute toxicity of silver nanoparticles in mice

2018 ◽  
Vol 31 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Young-Man Cho ◽  
Yasuko Mizuta ◽  
Jun-ichi Akagi ◽  
Takeshi Toyoda ◽  
Mizuki Sone ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Acute Toxicity ◽  
Size Dependent

scholarly journals An Evaluation of Acute Toxicity of Colloidal Silver Nanoparticles

2011 ◽  
Vol 73 (11) ◽  
pp. 1417-1423 ◽  
Author(s):  
Pattwat MANEEWATTANAPINYO ◽  
Wijit BANLUNARA ◽  
Chuchaat THAMMACHAROEN ◽  
Sanong EKGASIT ◽  
Theerayuth KAEWAMATAWONG
Keyword(s):  
Silver Nanoparticles ◽  
Acute Toxicity ◽  
Colloidal Silver ◽  
Colloidal Silver Nanoparticles

scholarly journals Sunlight-Induced Synthesis of Non-Target Biosafety Silver Nanoparticles for the Control of Rice Bacterial Diseases

Nanomaterials ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 2007
Author(s):  
Hongyi Shang ◽  
Zehao Zhou ◽  
Xuemin Wu ◽  
Xuefeng Li ◽  
Yong Xu
Keyword(s):  
Silver Nanoparticles ◽  
Acute Toxicity ◽  
Laser Scanning ◽  
Control Plant ◽  
Confocal Laser Scanning Microscope ◽  
Confocal Laser ◽  
Bacterial Diseases ◽  
Rice Bacterial Blight ◽  
High Antibacterial Activity ◽  
Vis Spectroscopy

Silver is an important and efficient bactericide. Nanoscale silver has a large specific surface area, high target adhesion, strong permeability and high bactericidal activity. At present, the control of plant bacterial diseases is difficult, and the resistance of plant bacterial pathogens develops rapidly. Silver nanoparticles are expected to become a new generation of agrochemical to control plant bacterial diseases. In this study, a simple and green natural sunlight-induced method was used to prepare carboxymethylcellulose sodium-stabilized silver nanoparticles (CMC-SNs) with a particle size of around 13.53 ± 4.72 nm. CMC-SNs were characterized by dynamic light scattering (DLS), transmission electron microscopy (TEM), energy-dispersive spectrometry (EDS), X-ray diffraction (XRD) and UV-vis spectroscopy and found to be spherical and evenly dispersed. The bacteriostatic activity of the CMC-SNs toward Xanthomonas oryzae pv. oryzae (Xoo) was tested. The minimum inhibitory concentration (MIC) of CMC-SNs to Xoo was 1 mg/L, and the minimum bactericidal concentration (MBC) was 2 mg/L. In addition, the antibacterial mechanism was studied by scanning electron microscope (SEM) and confocal laser scanning microscope (CLSM), which confirmed that the CMC-SNs had high antibacterial activity. In order to verify its impact on the environment, we conducted an acute toxicity test on zebrafish and found that Half lethal concentration (LC50) > 100 mg/L in zebrafish, or no acute toxicity. The ability of CMC-SNs to control rice bacterial blight was verified by a pot experiment.

scholarly journals Silver nanoparticles induced oxidative and endoplasmic reticulum stresses in mouse tissues: implications for the development of acute toxicity after intravenous administration

2016 ◽  
Vol 5 (2) ◽  
pp. 602-608 ◽  
Author(s):  
Rui Chen ◽  
Lin Zhao ◽  
Ru Bai ◽  
Ying Liu ◽  
Liping Han ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Endoplasmic Reticulum ◽  
Acute Toxicity ◽  
Intravenous Administration ◽  
Toxic Damage ◽  
Target Organs ◽  
Mouse Tissues

AgNPs cause toxic damage by gradually imposing stress impacts on the target organs in mice.

scholarly journals Toxicity of leachates from pilot reactors simulating a landfill with different concentrations of AgNP

2019 ◽  
Vol 24 (6) ◽  
pp. 1089-1094
Author(s):  
Raphael Zanelato ◽  
Isabela da Cruz Bonatto ◽  
José Julio Barrios Restrepo ◽  
Rodrigo Costa Puerari ◽  
William Gerson Matias ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Acute Toxicity ◽  
Aquatic Ecosystems ◽  
Aquatic Invertebrates ◽  
Trophic Levels ◽  
Toxicity Tests ◽  
Treatment Efficiency ◽  
Landfill Leachates ◽  
Acute Toxicity Tests

ABSTRACT This work’s objective was to verify the leachates toxicity from pilot reactors (PR) simulating a landfill containing different concentrations of silver nanoparticles (AgNP). Acute toxicity tests (48 h) with Daphnia magna were carried out in leachates containing 50, 150 and 450 mg AgNP.kg-1, in addition to a blank for control. Toxicity tests with the pure solution of silver nanoparticle and leachates resulted by the reactors were performed. The acute toxicity tests performed with D. magna confirmed the toxicity of the leachates, as well as confirmed that the silver nanoparticles are toxic, presenting EC50 (48 h) of 0.63 µg.L-1 of pure nanoparticle and ranging from 1.52 to 3.37% for the leachates. Overall, the results from the present study indicate that exposures of aquatic invertebrates to silver nanoparticles could have important ecological effects on lower trophic levels in aquatic ecosystems. The results may contribute to a better understanding of the quality of municipal solid waste (MSW) landfill leachates, with reference to nanoparticle interference and consequent treatment efficiency.

Is sulfidation a true detoxification process for silver nanoparticles?: from the perspective of chronic exposure

2019 ◽  
Vol 6 (12) ◽  
pp. 3611-3624 ◽  
Author(s):  
Mingzhu Li ◽  
Jing Li ◽  
Jing Sun ◽  
Yuning He ◽  
Pengjia Chen ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Acute Toxicity ◽  
Chronic Exposure ◽  
Term Effect ◽  
Long Term Effect ◽  
Detoxification Process

Sulfidation of silver nanoparticles may camouflage its long term effect with imperceptible acute toxicity.

scholarly journals Exposure Medium: Key in Identifying Free Ag+ as the Exclusive Species of Silver Nanoparticles with Acute Toxicity to Daphnia magna

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Mo-Hai Shen ◽  
Xiao-Xia Zhou ◽  
Xiao-Ya Yang ◽  
Jing-Bo Chao ◽  
Rui Liu ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Acute Toxicity ◽  
Daphnia Magna
Sign in / Sign up

Export Citation Format

Share Document